RT87 Radio Testing In The Cold

Retevis RT87 in the cold. Lewis, our Retevis friend, tested this IP67 radio RT87 in this cold winter in the UK. RT87 is a Dual-band Analog IP67 radio. Wanna know more about its specification, please click here: https://www.retevis.com/ip67-dual-band-rt87-amateur-radio He tested this RT87 with the temperature around 3 or 4 degrees. Check the location: First, he put some…

How to active VOX function of H777S?

What is VOX function?How to use it?Let me introduce it to you.When using your walkie talkies,turn on this function,you don’t need press PTT button when transmiting. When VOX is on your working channel,speak to the microphone directly,it will transmit automatically.It looks like this function is very convenience,So how to operate is?Let’s learn it together. Firstly,please…